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Year : 2018  |  Volume : 6  |  Issue : 3  |  Page : 97-101

A comparative study of tirofiban plus enoxaparin versus enoxaparin alone along with dual antiplatelet blockade in the management of patients with non-ST elevation acute coronary syndrome

1 Department of Cardiology, King George's Medical University, Lucknow, Uttar Pradesh, India
2 Department of Cardiology, Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India

Correspondence Address:
Dr. Akshyaya Pradhan
Department of Cardiology, King Georges Medical University, Lucknow, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/heartindia.heartindia_32_18

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Introduction: Antithrombotic therapy in patients with non-ST elevation acute coronary syndrome (NSTE-ACS) includes dual antiplatelet therapy (DAPT) along with enoxaparin. However, resistance to antiplatelet action of aspirin and clopidogrel is well known and is about 27% (0-57%) and 30%, respectively. Hence the use of GPIIb/IIIa inhibitor appears to be a reasonable option as they act on the final common pathway of platelet aggregation. Though frequently used in patients undergoing percutaneous intervention (PC1), their use in patients not undergoing such procedure is not popular despite evidence in literature. Materials and Methods: This study was done on 44 patients of NSTE-ACS managed conservatively. The patients were randomized in a 1:1 fashion in two groups. The patients in group 1 received tirofiban(0.4μg/kg/min i.v for 30 min followed by 0.1μg/kg/min for 48 hours) in addition to aspirin (325 mg stat followed by 75 mg P.O. daily), clopidogrel (300 mg stat followed by 75 mg P.O. daily) and enoxaparin (1 mg/kg S.C bid for 5 days). The group 2 patients received DAPT and enoxaparin only, in similar doses. Both the groups received antianginal therapy as appropriate and statins. Results: The study showed the benefits of adding tirofiban to enoxaparin and DAPT irrespective of age, sex, presence or absence of diabetes and dyslipidemia, ECG changes, troponin positivity and TIMI score in patients with NSTE-ACS. There was a significant reduction {Risk reduction (RR) of 45.4% P <0.01} in composite of primary end points refractory ischemia myocardial infarction (MI) and death with Tirofiban. No major or minor bleeding episodes were seen in any patients. Conclusion: Thus, we conclude that tirofiban in addition to DAPT and enoxaparin reduces the risk of refractory ischemia, MI and death in patients with NSTE-ACS without any additional risk of major or minor bleeding. Therefore, we advocate this regimen in patients with NSTE-ACS managed conservatively. Large randomized study is needed to recommend this regimen.

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